Sharp R-6G10 User manual

R-6G1U(W)

R-6G10(B)

SHARP:

SERVICE

MANUAL

S5807R6G10EHW

GRILL

AND

MICROWAVE

OVEN

MODELS

R-6G10(W)

|

:

In

interests

of

user-safety

the

oven

should

be

restored

to

its

original

|

~)

condition

and

only

parts

identical

to

those

specified

should

be

used.

es

(RD16101U)

:

3

i

|

FOREWORD...

cecesceceereesseerseetteeetcn

CAUTION,

MICROWAVE

RADIATION

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SE

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2

OPERATION

INSTRUCTIONS.

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12

‘

COMPONENT

REPLACEMENT

AND

ADISUSTMENT

PROCEDURE

.-...---ssssssceeesterrssereereceersnterennn

ree

21

inch

MICROWAVE

MEASUREMENT

PROCEDURE

Nrd

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38

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SHARP

CORPORATION

R-6G10(W)

|

R-6G10(B)

|

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SERVICE

MANUAL

SHARP

GRILL

AND

MICROWAVE

OVEN

R-6G10(W)/

R-6G10(B)

FOREWORD

This

Manual

has

been

prepared

to

provide

Sharp

Corp.

Service

Personne}

with

complete

Operation

and

Service

Information

for

the

SHARP

GRILL

AND

MICROWAVE

ovens,

R-6G10(W)/

R-6G10(8).

It

is

recommended

that

service

personnel.

carefully

study

the

entire

text

of

this

manual

so

they

will

be

qualified

to

render

—

satisfactory

customer

service.

Check

interlock

switches

and

door

seal

carefully.

Special

at-

_

tention

should

be

given

to

avoid

electrical

shock

and

microwave

radiation

hazard.

CAUTION,

MICROWAVE

RADIATION

Personnel

should

not

be

exposed

to

the

microwave

energy

|

which

may

radiate

from

the

magnetron

or

other

microwave

generating

devices

if

it

is

improperly

used

input

and

output

microwave

connections,

waveguides,

flanges

and

gaskets

must

be

secured.

Never

operate

the

device

without

-

4a

microwave

energy

absorbing

load

attached.

Never

look

into

an

open

waveguide

or

antenna

while

the

device

is

energized.

Note(Parts

List)

:

The

parts

marked

"

*”

are

used

in

voltage

more

than

250V.

SHARPCORPORATION

—

OSAKA,

JAPAN

(RD37201U)

~

(RD36102U)

-

or-connected..

All.

(RD36202U)

R-GUTUCW)

R-6G610(8)

R-6G10(W)

-

A-6G10(B):°

;

PRODUCT

DESCRIPTION

SPECIFICATION

|

CTEMSCS~*S

DESCRIPTION

220

Volts

.

Power

Requirements

50

Hertz

Single

phase,

3

wire

earthed

Microwave

cooking

1.25

kw

Dual

cooking

2.55

kW

Grill

cooking

1.35

kw

600

watts

nominal

of

RF

microwave

energy

(2

liter

water

load)

Operating

frequency

of

2450M

Hz

1.3

kW

Width

520

mm

a

‘Height

341

mm

including

foot

Depth

416

mm

Width

340

mm

Height

203

mm

Depth

350

mm

330mm

60

min.

Dual!

Speed

Timer

Microwave

Cooking

Control

Repetition

Rate;

Power

Consumption

Power

Output

Grill

Heating

element

Power

Output

Case

Dimensions

Cooking

Cavity

Dimensions

Turntable

diameter

Control

Complement

FULL

POWER

.......

Full

power

throughout

the

cooking

time

HORST:

sti

tentaind

a

gach

approx.

70%

of

Full

Power

SIMMER

esscaccicsnscacvissiiencc

approx.

50%

of

Full

Power

DEFROST

|

dive

miatccsnntaidcueken

approx.

30%

of

Full

Power

VOM

=

oes

hight,

nge

8

approx.

10%

of

Full

Power

Cooking

Start

Button,

Cooking

Mode

Selector

Microwave

cooking,

Grill

cooking,

Dual

cooking

Approx.

23

kg

(RD44101U)

GENERAL

INFORMATION

WARNING

THIS

APPLIANCE

MUST

BE

EARTHED

IMPORTANT

THE

WIRES

IN

THIS

MAINS

LEAD

ARE

COLOURED

IN

ACCORDANCE

WITH

THE

FOLLOWING

CODE:

GREEN-AND-YELLOW

:

EARTH

BLUE

>:

NEUTRAL

BROWN

:

LIVE

{RD61107U)

NOTE:

Numbers

and

letters

shown

after

sentences

such

as

"RD44101U”

are

for

factory

use

only.

2

ene

OPERATING

INSTRUCTIONS

1.

Waveguide

cover

2.

Oven

lamp

3,

Access

cover

for

oven

lamp

replacement

4.

Ventilation

openings

5.

Grill

heater

unit

6.

Oven

door

with

see-through

window

7.

Door

latches

8.

Hinges

9.

Roller

stay

10.

Removable

turntable

11.

Low

rack

(50'mm).

12.

High

rack

(135

mm)

_

13.

Cooking

mode

selector

MICROWAVE

[HE]

GRILL

DUAL

COOK

14.

Dual

speed

timer

{0-60

min)

|

45.

Microwave

cooking

control

{10—

100%)

46.

Cooking

start

button(

D)

17.

Door

open

button

{

\

}

K-6UTU(W}

R-6G10(B)

R-6GT0(W)

R-6G610(B)

OPERATION

DESCRIPTION

OF

OPERATING

SEQUENCE

The

following

is

a

description

of

component

functions

during oven

operation.

(RD71101u)

OFF

CONDITION

:

Closing

the

door

activates

heater

Switch

and

2nd

latch

switch

(In

this

condition,

the

monitor

switch

contacts

are

opened.)

With

the

timer

dial

at

”

@”

Position

and

the

door

closed,

no

components

in

the

oven

will

Operate.

(Figure

0-1).

Note:

When

the

door

is

opened

or

the

timer

is

set,

the

“oven

lamp

comes

on.

MICROWAVE

COOKING

CONDITION

Set

the

cooking

mode

selector

to

"i

fi)

‘MICRO-

WAVE”.

The

switch

condition

are

as

follows.

Switch

Contact

Condition

Micro

Select

Switch

COM-NC

Close

Grill

Select

Switch

COM-NC

Open

2nd

latch

Switch

COM-NO

Close

COM-NC

Open

COM-NO

Close

COM-NC

Open

Heater

Switch

.

Close

Monitor

Switch

FULL

POWER

COOKING

i

When

the

door

is

closed,

the

contacts

COM-NO

of

the

2nd

latch

switch

and

monitor

Switch

are

activated.

The

microwave

cooking

contro!

is

set

to

"(

cH

)FULL

POWER’

position

an

cooking

time

is

selected

by

turn-

ing

the

timer.

.

When

turning

the

timer,

the

oven

lamp

lights.

When

the

“COOKING

START’

button

is

pushed,

the

following

operations

occur.:

(Figure

0-2)

1-1.

The

contacts

of

1st

latch

&

cook

switch

are

closed.

1-2.

Then

Following

components

are

energized.

O

:

energized

:

de-energized

Oven

lamp

Oo

Power

transformer

O

Heater

relay

O

Surge

relay

O

Timer

motor

oO

Fan

motor

oO

Turntable

motor

Oo

Magnetron

Oo

Grill

heating

-

element

Or

1-3.

220

voits

A.C.

is

supplied

to

the

primary

winding

of

the

power

transformer

and

is

converted

to

about

3.30

volts

A.C.

output

on

the

filament

winding,

and

approximately

1950

volts

A.C.

on

the

high

voltage

winding.

1-4.

The

filament

winding

voltage

heats

the

magnetron

filament

and

the

H.V.

winding

volt-

age

is

sent

to

a

voltage

doubler

Circuit.

1-5.

The

microwave

energy

produced

by

the

magnetron

is

channeled

through

the

waveguide

into

the

cavity

feed

~box,

and

then

into

the

cavity

where

the

food

is

placed

to

be

cooked.

1-6.

Upon

compietion

of

the

selected

cooking

time,

the

timer

bel!

rings,

and

contacts

of

the

timer

are

open,

then

the

activated

components

as

item

1-2

are

de-energized.

The

oven

reverts

to

the

OFF

condition.

1-7.

The

monitor

switch

is

electrically

monitoring

the

operation

of

the

1st

latch

&

cook

switch

and

is

mechanically

associated

with

the

door

so

that

‘it

will

function

in

the

following

sequence.

(1)

When

the

door

opens

from

closed

position

during

cooking,

the

1st

latch

&

cook

switch

first

operates

to

open

its

contacts,

and

then

the

monitor

switch

contacts(COM-NC)

close,

-

and

2nd

latch

switch

contacts(COM-NO)

open,

and

then

heater

switch

contacts

open.

(2)

When

the

door

is

closed

from

open

position,

the

contacts(COM-NC)

of

the

monitor

switch

open

and

2nd

latch

switch

contacts(COM-NO)

first

close

and

then

the

contacts

of

heater

switch

close.

If

the

1st

latch

&

cook

switch

fails

with

its

contacts

closed

when

the

door

is

opened,

closing

of

the

monitor

switch

contacts(COM-NC)

will

form

a

short

Circuit

through

the

fuse,

monitor

resistor

and

1st

latch

&

cook

Switch,

causing

the

fuse

to

blow.

ROAST,

SIMMER,

DEFROST,

WARM

COOKING

When

Variable.

Cooking

Power

is

programed,

the

220

volts

A.C.

is

supplied

to

the

power

transformer

intermittently

through

the

vari-switch

within

a

30

sec-

ond

time

base.

Microwave

Power

operation

is

as

fo}-

lows:

VARI-MODE

ON

TIME

OFF

TIME

FULL

PowEQ

oe

FULL

POWER

30

sec.

0

sec.

(100%

power)

ROAST

24

sec,

6

sec.

(approx.

70%

power)

SIMMER

18

sec.

12

sec.

(approx.

50%

power)

DEFROST

12

sec.

18

sec.

(approx.

30%

power)

WARM

§

sec.

24

sec.

_

(approx.

10%

power)

Note:

The

ON/OFF

time

ratio

does

not

correspond

with

the

percentage

of

microwave

power,

be-

Cause

approx.

2

seconds

are

needed

for

heating

of

the

magnetron

filament.

(RO71403LU)

~i

DUAL

COOKING

CONDITION

In

this

condition,

the

food

is

cooked

by

both

micro-

wave

energy

and

grill

heating

energy

simultaneously.

Set

the

cooking

mode

selector

to

:

DUAL

COOK”.

The

switch

condition

are

as

follows.

Contact

Condition

“COM-NC_

Close

COM-NC

Close

COM-NO

Close

-

COM-NC

Open

COM-NO

Close

COM-NC

Open

Close

—

Heater

Switch

Micro

Select

Switch

~

Grill

Select

Switch

2nd

latch

Switch

Monitor

Switch

Set

the

desired

cooking

time

by

turning

timer.

You

can

select

the

microwave

power

levels.

When

the

"COOKING

START”

button

is

pushed,

the

following

operations

occur.

(Figure

O-4)

1,

2.

The

contacts

of

1st

latch

&

cook

switch

are

closed.

Then

Following

components

are

energized.

OQ:energized

—:

de-energized

___O:energized_—

(ce

Oven

lamp

.@)

Power

transformer

O

Heater

relay

om

Surge

relay

e)

Timer

motor

ae)

Fan

motor

O

Turntable

motor

oO

Magnetron

oO

_

Grill

heating

Oo

.

element

eee

Now

the

food

is

cooked

by

microwave

and

grill

-

heating

element

energy

simultaneously.

Upon

completion

of

the

selected

cooking

time,

the

timer

bell

rings,

and

contacts

of

the

timer

are

opened,

then

the

activated

components

as

item

2

are

de-energized.

‘The

oven

reverts

to

the

OFF

condition.

But

the

fun

motor

rotates

when

the

temperature

of

‘cooling

thermal

cut-out

is

higher

than

400

°C.

When

it

becomes

lower

than

80

°C,

the

fan

motor

will

stop

rotating

automatically.

R-6G10(W)

R-6G10(B)

GRILL

COOKING

CONDITION

tn

this

condition,

the

food

is

cooked

by

grill

heating

element

energy.

Set

the

cooking

mode

selector

to

”

The

switch

condition

are

as

follows.

(W}

GRILL’.

ee

Switch

Contact

Condition

Micro

Select

Switch

COM-NC

Open

Grill

Select

Switch

COM-NC

Close

2nd

latch

Switch

COM-NOQ

Close

COM-NC

Open

COM-NO

Close

COM-NC

Open

Heater

Switch

Close

.

___

Heater Switch

Monitor

Switch

Set

the

desired

cooking

time

by

turning

timer.

You

can

not

set

the

disired

temperature.

When

the

“COOKING

START”

button

is

pushed,

the

following

operations

OCCUT..

(Figure

0-3)

4.

The

contacts

of

1st

latch

&

cook

switch

are

closed.

2.

Then

Following

components

are

energized.

O-:energized

—:

de-

energized

Oven

lamp

©

‘

Power

transformer

—

Heater

relay

O

Surge

relay

-

Timer

motor

@)

Fan

motor

O

Turntable

mator

ao

Magnetron

-

Gril!

heating

O

element

|

3.

Now

the

food

is

cooked

4.

Upon

completion

of

the

selected

cooking

time,

the

timer

bell

rings,

and

contacts

of

the

timer

are

opened,

then

the

activated

components

as

item

2

are

de-energized.

.

The

oven

reverts

to

the

OFF

condition.

5.

But

the

fun

motor

rotates

when

the

temperature

of

cooling

thermal

cut-out

is

higher

than

100

*C.

When

it

becomes

lower

than

80

°C,

the

fan

motor

will

stop

rotating.

automatically.

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—_———

R-6G10(W)

R-6610(B)}

DESCRIPTION

AND

FUNCTION

OF

COMPONENTS

1ST

LATCH

&

COOK

SwitcH

This

switch

functions

both

as

a

latch

switch

and

the

cook

switch.

Operation

is

as

follows.

1.

When

the

door

is

closed,

the

lower

latch

head

snaps

down

above

the

switch

lever

which

causes

not

to

close

the

switch.

2.

When

the

start

button

is

pressed,

it

pushes

the

Switch

lever.

The

switch

lever

now

depresses

the

plunger

of

the

switch

closing

its

COM-NO

contacts

(ON

condition).

3.

When

the

open

button

is

Pressed,

it

pushes

the

open

lever.

The-open

lever

raises

the

switch

lever

raising

the

lower

latch

head.

As

that

time,

the

switch

lever

is

released

from

the

plunger

of

the

1st

latch

&

cook

switch.

The

switch

lever

is

returned

to

its

original

position.

Now,

the

COM-NO

contacts

of

the

switch

opened

(OFF

condition).

2ND

LATCH

SWITCH

:

The

switch

is

activated

by

the

upper

latch

head

on

the

door.

When

the

door

is

Opened,

the

switch

interrupts

the

Circuit

to

all

components,

except

oven

lamp

and

fan

motor.

Then

the

cook

cycle

is

stopped.

A

cook

cycle

cannot

take

place

until

the

door

is

firmly

closed

and

the

start

button

is

depressed

with

the

timer

set.

>

HEATER

SWITCH

The

heater

switch

is

located

at

the

latch

hook.

.

The

contacts

of

the

heater

switch

are

mechanically

opened

by

opening

the

door,

and

closed

by

closing

the

door.

DOOR

OPEN

MECHANISM

The

door

can

be

opened

by

pushing

the

open

button

on

the

contro!

panel.

When

the

open

button

is

pushed,

the

open

lever

pushes

switch

lever.

The

switch

lever

pushes

lower

latch

head

on

the

door

upward.

The

upper

latch

head

is

linked

with

the

lower

latch

lead,

So

now,

the

door

can

be

opened.

MONITOR

SWITCH

| |

The

monitor

switch

is

activated

(the

COM-NC

contacts

opened)

by

the

lower

latch

head

on

the

door

while

the

door

is

closed.

The

switch

is

intended

to

render

the

oven

inoperative

by

means

of

blowing

the

fuse(F6.3A)

when

the

contacts

of

the

ist

latch

&

cook

switch

fail

to

open

when

the

door

is

opened.

Function

1.

When

the

door

is

Opened,

the

monitor

Switch

COM-NC

contacts

close

{to

the

ON

condition)

due

to

their

being

normally

closed.

At

this

time

the

1st

latch

&

cook

switche

is

in

the

OFF

condition

(contacts

open)

due

to

their

being

normally

open

contact

switches.

2.

As

the

door

goes

to

a

closed

position,

the

monitor

switch

COM-NC

contacts

are

first

opened

and

then

the

1st

latch

&

cook

switch

contacts

close

when

the

cook

button

is

depressed.

(On

Opening

the

door,

each

of

these

Switches

operate

inversely.

)

3.

If

the

door

is

opened,

and

the

‘st

latch

&

cook

Switch

contacts

fail

to

open,

the

fuse

blows

simul-

taneously

with

closing

of

the

monitor

switch

COM-NC

contacts.

:

CAUTION:

BEFORE

REPLACING

A

BLOWN

FUSE

TEST

THE

1ST

LATCH

&

COOK

SWITCH

AND

MONITOR

SWITCH

FOR

PROPER

OPERATION.

(REFER

TO

CHAPTER

“TEST

PROCE-

DURE”).

Door

2nd

latch

Switch

Upper

Heater

Switch

monitor

Switch

lever

Open

lever

Open

button

Figure

D-1.

Door

Open

Mechanism

Sharp R-6G10 User manual

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